#include "Circle.h"
#include "Point.h"  // 需要添加 Point 头文件
//这里需要对友元类进行具体的操作，而且对应到头文件的声明
//这里对应需要找到友元类的相关信息，包含Point.h
Circle::Circle()
{
    cout << "Circle()" << endl;
}

Circle::~Circle()
{
    cout << "~Circle()" << endl;
}

void Circle::printPoint2(const Point& p) {
    cout << "printPont2: \n"
        << "Point(" << p.x << ", " << p.y << ")" << endl;
}